Polymer | classification of polymer on the basis of Synthesis | engineering chemistry | Mohan dangi

Digitech education

5 Apr 202213:21

EducationalLearning

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TLDRThis video script delves into the classification of polymers, focusing on addition polymerization, a process where monomers are added together to form polymers. It explains the concept of unsaturated monomers and the importance of the addition reaction in creating addition polymers. The script also touches on the mechanisms involved in polymerization, including anionic, cationic, and free radical mechanisms, and hints at further discussions on these mechanisms in upcoming videos. The presenter aims to educate viewers on the synthesis and classification of polymers, providing foundational knowledge for those interested in the field.

Takeaways

😀 The video discusses the classification of polymers based on the operational units, specifically focusing on 'addition polymers' and 'condensation polymers'.
🔍 It explains the manufacturing process of polymers, emphasizing the 'process of polymerization' and different types of polymerization such as 'chain polymerization'.
🔬 The script delves into 'addition polymers', which are formed through addition reactions, and uses the example of 'aldehydes' to illustrate the process.
📚 It introduces the concept of 'unsaturated monomers' and how they are involved in the formation of polymers, highlighting the importance of 'unsaturated' conditions for the reaction.
🔑 The video mentions 'insecure monomers' and explains their role in the polymerization process, suggesting that a higher number of these monomers leads to a more successful reaction.
🛠️ It outlines the three steps involved in the formation of 'addition polymers': initiation, propagation, and termination.
🔄 The script touches on different mechanisms of polymerization, such as 'cationic mechanism', 'anionic mechanism', and 'free radical mechanism', indicating their roles in the process.
📈 The importance of the 'initiation step' is highlighted, where the reaction starts and the formation of the polymer chain begins.
🔚 The 'termination step' is also discussed, marking the end of the polymer chain growth, which is crucial for the final product's properties.
📝 The video promises to cover more details about the mechanisms in upcoming videos, including a comprehensive discussion on 'free radical mechanism'.
👍 It concludes by encouraging viewers to like, share, and subscribe for more educational content on polymers and related topics.

Q & A

What is the main topic of the video script?
-The main topic of the video script is the classification of polymers based on the operational unit, focusing on the synthesis, manufacturing process, and types of polymers.
What is the meaning of 'Addition Polymerization' in the context of the script?
-'Addition Polymerization' refers to a type of polymerization reaction where monomers are joined together without the loss of any small molecules, forming a chain-like structure.
What is the significance of the term 'Unsaturated Monomers' mentioned in the script?
-Unsaturated Monomers are monomers that contain double or triple bonds, which allow them to participate in addition polymerization reactions to form polymers.
What are the three main steps involved in the addition polymerization process as described in the script?
-The three main steps involved in the addition polymerization process are initiation, propagation, and termination.
What is meant by 'Chain Propagation' in the context of polymerization?
-Chain Propagation is the step in the polymerization process where the growing polymer chain reacts with more monomers to continue the formation of the polymer.
What is the role of 'Initiators' in the polymerization process?
-Initiators are substances that start the polymerization process by initiating the reaction between monomers, leading to the formation of the polymer chain.
What is the difference between 'Chain Polymerization' and 'Step Growth Polymerization' as mentioned in the script?
-Chain Polymerization involves the sequential addition of monomers to a growing chain, while Step Growth Polymerization involves the reaction of functional groups of monomers with each other, forming a polymer through a series of steps.
What is the importance of 'Unsaturated' monomers in the context of the script?
-Unsaturated monomers are important because they contain double or triple bonds that can react with other monomers, allowing the polymerization process to occur and form long-chain polymers.
What is the term used for polymers that are formed through the reaction of monomers with each other?
-The term used for polymers that are formed through the reaction of monomers with each other is 'Addition Polymers'.
What is the significance of the term 'Termination' in the polymerization process?
-Termination is the final step in the polymerization process where the growing polymer chain is ended, and no more monomers are added to it.
What are the different mechanisms involved in the addition polymerization process according to the script?
-The different mechanisms involved in the addition polymerization process include Cationic, Anionic, and Free Radical mechanisms.

Outlines

00:00

🔬 विज्ञान के जरिए पॉलीमर क्लासिफिकेशन

इस खंड में, व्याख्या की गई है कि कैसे विज्ञान के जरिए पॉलीमर को क्लासिफिकेशन किया जा सकता है। विशेष रूप से, एडिशन पॉलीमर और चेन पॉलीमराइज़ेशन के बारे में चर्चा की गई है। यहाँ पर 'एडिशन' शब्द दो प्रकार के रिएक्शनों के लिए प्रयोग किया गया है - एक जो पॉलीमर के निर्माण के लिए उपयोग होता है, और दूसरा जो उसी के विशिष्ट प्रकार के रूप में। विडियो में यह भी बताया गया है कि कैसे अनसैचुरेटेड मोनोमर्स के साथ एक साथ मिलकर एडिशन पॉलीमर्स बनते हैं, और इस प्रक्रिया को चेन पॉलीमराइज़ेशन कहा गया है।

05:01

🧪 अनसैचुरेटेड मोनोमर्स और एडिशन पॉलीमराइज़ेशन

इस खंड में, अनसैचुरेटेड मोनोमर्स और उनके संयोजन के माध्यम से एडिशन पॉलीमराइज़ेशन के बारे में विस्तृत जानकारी प्रदान की गई है। यहाँ पर 'अनसैचुरेटेड' शब्द का अर्थ समझाया गया है, जो कि एक मोनोमर में होने वाले संख्या के साथ संबंधित होता है। विडियो में यह भी बताया गया है कि कैसे अनसैचुरेटेड मोनोमर्स एक-दूसरे के साथ संयुज्य और पॉलीमर की रचना करते हैं, जिसे एडिशन पॉलीमराइज़ेशन कहा गया है।

10:02

🔍 एडिशन पॉलीमराइज़ेशन के मैकेनिज़्म

इस खंड में, एडिशन पॉलीमराइज़ेशन के तीन विभिन्न मैकेनिज़्म - काट्यायनिक, फ्री रेडिकल, और नेटलिक - के बारे में चर्चा की गई है। विडियो में यह भी बताया गया है कि कैसे ये मैकेनिज़्म एक-दूसरे से भिन्न होते हैं और कैसे वे एडिशन पॉलीमराइज़ेशन प्रक्रिया में भाग लेते हैं। यहाँ पर विडियो के निर्माता ने अपने दृष्टिकोण और विस्तृत जानकारी देने का संकल्प दिखाया है।

Mindmap

Keywords

💡Polymer

A polymer is a large molecule composed of repeating structural units, which are connected by covalent chemical bonds. In the context of the video, polymers are the main subject, with a focus on their classification and manufacturing processes. The script mentions 'polymer' in relation to addition polymerization and chain polymerization, highlighting its relevance to the video's theme of polymer synthesis.

💡Addition Polymerization

Addition polymerization is a process where monomers are joined together without the loss of any small molecules. It is one of the key concepts in the video, explaining how certain types of polymers are formed. The script uses the term to describe the synthesis of 'addition polymers' and contrasts it with other types of polymerization.

💡Chain Polymerization

Chain polymerization refers to a type of polymerization where the reaction involves a reactive intermediate, often a free radical, that adds monomers to form a polymer chain. The video script discusses this process as one of the methods for synthesizing polymers, emphasizing its importance in the creation of addition polymers.

💡Monomers

Monomers are the small molecules that can chemically bond together to form a polymer. They are the building blocks of polymers. In the script, monomers are mentioned in the context of addition and chain polymerization processes, illustrating their role in the formation of polymers.

💡Unsaturated Monomer

An unsaturated monomer is a type of monomer that contains one or more double or triple bonds, which allows it to participate in polymerization reactions. The video script refers to unsaturated monomers in the context of their ability to undergo addition polymerization, forming polymers with long chains.

💡Initiation

Initiation is the first step in a polymerization reaction where a reactive species, such as a free radical, is formed to start the process of adding monomers together. The script mentions 'initiation' as part of the chain polymerization process, indicating the beginning of the polymer formation.

💡Propagation

Propagation is the ongoing process in polymerization where monomers are continuously added to the growing polymer chain. It is a central concept in the video's explanation of how polymers are formed. The script discusses propagation in the context of both addition and chain polymerization.

💡Termination

Termination is the final step in a polymerization reaction where the growing polymer chain is ended, resulting in the formation of the final polymer product. The video script refers to 'chain termination' as the step that concludes the polymerization process.

💡Free Radicals

Free radicals are reactive chemical species with unpaired electrons that play a crucial role in many chemical reactions, including chain polymerization. The script mentions free radicals in the context of their involvement in the propagation step of chain polymerization.

💡Catalytic Mechanism

A catalytic mechanism involves the use of a catalyst to lower the activation energy of a reaction, thereby increasing the reaction rate. In the video script, the term is used to describe how certain reactions, including polymerization, can be facilitated by catalysts.

💡Polymer Classification

Polymer classification refers to the categorization of polymers based on their structure, synthesis method, or properties. The video script discusses different types of polymers, such as addition polymers and chain polymers, as part of the classification process.

Highlights

Introduction to classifying polymers based on operational units.

Explanation of the synthesis and manufacturing process of polymers.

Differentiation between addition polymers and other types of polymers.

The concept of chain polymerization and its significance.

Importance of monomers in the polymerization process.

Discussion on the addition polymerization reaction and its mechanism.

Types of addition polymers and their properties.

The role of catalysts in the polymerization process.

Explanation of unsaturated monomers and their characteristics.

The concept of chain transfer in polymerization.

Details on the process of chain termination in polymerization.

The impact of molecular weight on polymer properties.

Different mechanisms involved in addition polymerization.

The role of free radicals in the polymerization process.

Cationic and anionic mechanisms in polymerization.

Practical applications of polymers in various industries.

Environmental considerations in polymer production and disposal.

Future trends and innovations in polymer science.

Transcripts

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Takeaways

Q & A

What is the main topic of the video script?

What is the meaning of 'Addition Polymerization' in the context of the script?

What is the significance of the term 'Unsaturated Monomers' mentioned in the script?

What are the three main steps involved in the addition polymerization process as described in the script?

What is meant by 'Chain Propagation' in the context of polymerization?

What is the role of 'Initiators' in the polymerization process?

What is the difference between 'Chain Polymerization' and 'Step Growth Polymerization' as mentioned in the script?

What is the importance of 'Unsaturated' monomers in the context of the script?

What is the term used for polymers that are formed through the reaction of monomers with each other?

What is the significance of the term 'Termination' in the polymerization process?

What are the different mechanisms involved in the addition polymerization process according to the script?